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        <h1>Container 布局容器</h1>
        <p>用于布局的容器组件，方便快速搭建页面的基本结构：</p>
        <p>
            <span class="code">&lt;el-container&gt;</span>：外层容器。 当子元素中包含 <span class="code">&lt;el-header&gt;</span> 或 <span class="code">&lt;el-footer&gt;</span> 时， 外层容器的全部子元素会垂直上下排列，否则会水平左右排列。
        </p>
        <p>
            <span class="code">&lt;el-header&gt;</span>：顶栏容器。
        </p>
        <p>
            <span class="code">&lt;el-aside&gt;</span>：侧边栏容器。
        </p>
        <p>
            <span class="code">&lt;el-main&gt;</span>：主要区域容器。
        </p>
        <p>
            <span class="code">&lt;el-footer&gt;</span>：底栏容器。
        </p>

        <div class="tip">
            <p>以上组件采用了 flex 布局，使用前请确定目标浏览器是否兼容。此外，<span class="code">&lt;el-container&gt;</span> 的子元素只能是后四者，后四者的父元素也只能是
                <span class="code">&lt;el-container&gt;</span>。
            </p>
        </div>


        <h2>常见页面布局</h2>

        <el-container>
            <el-header>Header</el-header>
            <el-main>Main</el-main>
        </el-container>

        <el-container>
            <el-header>Header</el-header>
            <el-main>Main</el-main>
            <el-footer>Footer</el-footer>
        </el-container>

        <el-container>
            <el-aside width="200px">Aside</el-aside>
            <el-main>Main</el-main>
        </el-container>

        <el-container>
            <el-header>Header</el-header>
            <el-container>
                <el-aside width="200px">Aside</el-aside>
                <el-main>Main</el-main>
            </el-container>
        </el-container>

        <el-container>
            <el-header>Header</el-header>
            <el-container>
                <el-aside width="200px">Aside</el-aside>
                <el-container>
                    <el-main>Main</el-main>
                    <el-footer>Footer</el-footer>
                </el-container>
            </el-container>
        </el-container>

        <el-container>
            <el-aside width="200px">Aside</el-aside>
            <el-container>
                <el-header>Header</el-header>
                <el-main>Main</el-main>
            </el-container>
        </el-container>

        <el-container>
            <el-aside width="200px">Aside</el-aside>
            <el-container>
                <el-header>Header</el-header>
                <el-main>Main</el-main>
                <el-footer>Footer</el-footer>
            </el-container>
        </el-container>

        <h2>实例</h2>
        <el-container style="height: 500px; border: 1px solid #eee">
            <el-aside width="200px" style="background-color: rgb(238, 241, 246)">
                <el-menu :default-openeds="['1', '3']">
                    <el-submenu index="1">
                        <template slot="title"><i class="el-icon-message"></i>导航一</template>
                        <el-menu-item-group>
                            <template slot="title">分组一</template>
                            <el-menu-item index="1-1">选项1</el-menu-item>
                            <el-menu-item index="1-2">选项2</el-menu-item>
                        </el-menu-item-group>
                        <el-menu-item-group title="分组2">
                            <el-menu-item index="1-3">选项3</el-menu-item>
                        </el-menu-item-group>
                        <el-submenu index="1-4">
                            <template slot="title">选项4</template>
                            <el-menu-item index="1-4-1">选项4-1</el-menu-item>
                        </el-submenu>
                    </el-submenu>
                    <el-submenu index="2">
                        <template slot="title"><i class="el-icon-menu"></i>导航二</template>
                        <el-menu-item-group>
                            <template slot="title">分组一</template>
                            <el-menu-item index="2-1">选项1</el-menu-item>
                            <el-menu-item index="2-2">选项2</el-menu-item>
                        </el-menu-item-group>
                        <el-menu-item-group title="分组2">
                            <el-menu-item index="2-3">选项3</el-menu-item>
                        </el-menu-item-group>
                        <el-submenu index="2-4">
                            <template slot="title">选项4</template>
                            <el-menu-item index="2-4-1">选项4-1</el-menu-item>
                        </el-submenu>
                    </el-submenu>
                    <el-submenu index="3">
                        <template slot="title"><i class="el-icon-setting"></i>导航三</template>
                        <el-menu-item-group>
                            <template slot="title">分组一</template>
                            <el-menu-item index="3-1">选项1</el-menu-item>
                            <el-menu-item index="3-2">选项2</el-menu-item>
                        </el-menu-item-group>
                        <el-menu-item-group title="分组2">
                            <el-menu-item index="3-3">选项3</el-menu-item>
                        </el-menu-item-group>
                        <el-submenu index="3-4">
                            <template slot="title">选项4</template>
                            <el-menu-item index="3-4-1">选项4-1</el-menu-item>
                        </el-submenu>
                    </el-submenu>
                </el-menu>
            </el-aside>

            <el-container>
                <el-header style="text-align: right; font-size: 12px">
                    <el-dropdown>
                        <i class="el-icon-setting" style="margin-right: 15px"></i>
                        <el-dropdown-menu slot="dropdown">
                            <el-dropdown-item>查看</el-dropdown-item>
                            <el-dropdown-item>新增</el-dropdown-item>
                            <el-dropdown-item>删除</el-dropdown-item>
                        </el-dropdown-menu>
                    </el-dropdown>
                    <span>王小虎</span>
                </el-header>

                <el-main>
                    <el-table :data="tableData">
                        <el-table-column prop="date" label="日期" width="140">
                        </el-table-column>
                        <el-table-column prop="name" label="姓名" width="120">
                        </el-table-column>
                        <el-table-column prop="address" label="地址">
                        </el-table-column>
                    </el-table>
                </el-main>
            </el-container>
        </el-container>

        <br/>
        <br/>
        <br/>
        <h2>el-container 属性/Container Attributes</h2>
        <table class="common-table">
            <thead>
                <tr>
                    <th>参数</th>
                    <th>说明</th>
                    <th>类型</th>
                    <th>可选值</th>
                    <th>默认值</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>direction</td>
                    <td>子元素的排列方向</td>
                    <td>string</td>
                    <td>horizontal / vertical</td>
                    <td>子元素中有 <code>el-header</code> 或 <code>el-footer</code> 时为 vertical，否则为 horizontal</td>
                </tr>
            </tbody>
        </table>
        <br/>
        <br/>
        <br/>

        <h2>el-header 属性/Header Attributes</h2>
        <table class="common-table">
            <thead>
                <tr>
                    <th>参数</th>
                    <th>说明</th>
                    <th>类型</th>
                    <th>可选值</th>
                    <th>默认值</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>height</td>
                    <td>顶栏高度</td>
                    <td>string</td>
                    <td>—</td>
                    <td>60px</td>
                </tr>
            </tbody>
        </table>

        <br/>
        <br/>
        <br/>

        <h2>el-aside 属性/Aside Attributes</h2>
        <table class="common-table">
            <thead>
                <tr>
                    <th>参数</th>
                    <th>说明</th>
                    <th>类型</th>
                    <th>可选值</th>
                    <th>默认值</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>width</td>
                    <td>侧边栏宽度</td>
                    <td>string</td>
                    <td>—</td>
                    <td>300px</td>
                </tr>
            </tbody>
        </table>

        <br/>
        <br/>
        <br/>

        <h2>el-footer 属性/Footer Attributes</h2>
        <table class="common-table">
            <thead>
                <tr>
                    <th>参数</th>
                    <th>说明</th>
                    <th>类型</th>
                    <th>可选值</th>
                    <th>默认值</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>height</td>
                    <td>底栏高度</td>
                    <td>string</td>
                    <td>—</td>
                    <td>60px</td>
                </tr>
            </tbody>
        </table>


        <h2>其他</h2>
        <p>用 span 加 class 来代替 code 标签 </p>
        <p>不想左尖括号被解析为html标签，可以用 &lt; 代替</p>
        <p>不想右尖括号被解析为html标签，可以用 &gt; 代替</p>
    </div>
</body>

<script>
    new Vue({
        el: '#app',
        data() {
            return {
                show: true,
                tableData: []
            }
        },
        created() {
            const item = {
                date: '2016-05-02',
                name: '王小虎',
                address: '上海市普陀区金沙江路 1518 弄'
            };
            this.tableData = Array(20).fill(item)
        }
    });
</script>
<style>
    .el-header,
    .el-footer {
        background-color: #B3C0D1;
        color: #333;
        text-align: center;
        line-height: 60px;
    }
    
    .el-aside {
        background-color: #D3DCE6;
        color: #333;
        text-align: center;
        line-height: 200px;
    }
    
    .el-main {
        background-color: #E9EEF3;
        color: #333;
        text-align: center;
        line-height: 160px;
    }
    
    body>.el-container {
        margin-bottom: 40px;
    }
    
    .el-container:nth-child(5) .el-aside,
    .el-container:nth-child(6) .el-aside {
        line-height: 260px;
    }
    
    .el-container:nth-child(7) .el-aside {
        line-height: 320px;
    }
</style>

</html>